baber/WOPTO huggingface dataset:
Patent GB-630638-A (GB)
Title: Electrical measuring apparatus
IPC: G01R17/02
Filed: 1947-06-10
Abstract: 630,638. Impedance measurements. FOXBORO CO. June 10, 1947, No. 15263. Convention date, June 12, 1946. [Class 37] [Also in Group XXXVIII] A circuit for measuring impedance, e.g. the resistance of a temperature, conductivity, pressure, humidity or strain-sensitive element, comprises (1) a first potentiometer consisting of impedances 66, D, 64 across a source 14, impedance D being shunted by a variable impedance 40 in series with an impedance 76, and (2) a second potentiometer consisting of impedances 52, S, 50 across a source, impedance S being shunted by impedance A, the condition responsive or unknown impedance 57 and impedance C, the potentials at Y, W, being compared in a null indicator 30 and impedance 40 being adjusted to secure balance. Preferably any out-of-balance current actuates a motor 36 which controls recorder 42 and adjusts impedance 40 to produce balance. As shown, both potentiometers are supplied from the same source so that they form a bridge. Impedances D, S are selected from D1 ... D4, S1 ... S4 to provide four ranges within which impedance 57 may lay. Each resistance A is equal to the sum of the corresponding resistance C and the value of the resistance 57 at the mid-point of the corresponding range ; the resistances A, C preferably have a low temperature co-efficient, and the arrangement is such as to compensate for the non-linearity of the variation of resistance 57 with temperature. As shown, the source 14 is an A.C. source, and the phase of the potential at W and Y is compared in indicator 30 to actuate motor 36 to reduce the phase difference to zero. Adjustment of impedance 76 permits the zero of the circuit to be adjusted. Specification 646,981 is referred to.
Patent GB-593864-A (GB)
Title: Improvements in chucks
IPC: B23B31/103
Filed: 1945-06-18
Abstract: 593,864. Chucks and sockets. JOHANSSON, E..T..Tune 18, 1945, No. 15385. [Class 83 (iii)] A self-engaging chuck for rotary spindle machines is characterised by the body being taper-bored to receive a collet having left- and right-hand spiral grooves for engagement by latch members mounted in the walls of the body, the latch members being locked against the collet by a slidable sleeve on the exterior of the body. The collet 3 has grooves 4, the upper faces 27 of which are bevelled to effect a locking action with the tapered ends of the rollers 6 which are mounted in radially slotted apertures in the walls of the chuck body 2. The travel of the sleeve is limited by a screw 7 projecting through the sleeve into a recess 8 in the body. In a modification, the -body is partly threaded externally to receive a ring which forces the sleeve downwardly to give a greater grip by the rollers and also acts as a stop to limit the upward travel. The rollers may be disposed transversely to the chuck axis and the ends engaging the sleeve bellied or recessed to receive balls for transmitting the thrust. In a further modification, levers, intermedially pivoted, are carried in the walls of the body, the upper end of the levers being provided with a toe and the lower ends cupped to receive the thrust balls ; they are also formed with bevelled edges to engage the grooves of the collet. In this construction, the balls and latching-ends are. positively moved away from the collet by the upward movement of the external sleeve coacting with the toes of the levers. The socket may be released without stopping the machine.
Patent GB-434713-A (GB)
Title: Improvements in or relating to circuit arrangements comprising a gasfilled incandescent electrode discharge tube
IPC: H05B41/04
Filed: 1935-05-27
Abstract: 434,713. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. May 27, 1935, No. 15427. Convention date, July 20, 1934. [Class 39 (i)] Relates to circuits for gas or vapour-filled discharge tubes with a branch circuit 12 in parallel with the discharge path so that, when an interrupter 13 is closed to start the discharge, incandescent electrodes 2, 3 or their heaters are connected to the supply 10 through the series choke-coil 11 of the tube to heat the electrodes 2, 3 prior to starting the discharge by opening the interrupter 13. The circuit is now arranged so that part 17 of the coil 11 can be connected through a switch 16 directly to the supply 10, the coil 11 acting as an autotransformer during the heating of the electrodes 2, 3. The part 18 of the coil 11 supplying the heating current may be of thicker wire than the part 17. The switches 13, 16 may be united to form a bipolar switch and may be opened automatically to start the discharge. A condenser may be connected in parallel to the tube 1 to facilitate the starting. Electrical data and tube dimensions are specified for a lamp filled with neon at 2 mm. pressure.
Patent GB-276466-A (GB)
Title: Improvements in or relating to methods of and means for reproducing or recording sounds
IPC: H04R11/08
Filed: 1926-06-19
Abstract: 276,466. Lea, N., and Radio Communication Co., Ltd. June 19, 1926. Magnetic instruments.-In an electromagnetic device for recording sound or for reproducing sound from a record, the mass of the vibrating system comprises only the needle or stylus forming part of the magnetic circuit and that portion of a rubber or like substantially non-resonant supporting member which is in contact with the needle or stylus. In the construction, Fig. 1, the gramophone needle N is held by a tube T of rubber &c. in a hole in a non-magnetic bridge B fixed to the magnets M and carrying two pole tips P<1>, P<2> forming extensions of the poles of the magnet M. One pole tip P<1> extends the full width and the other P<2> extends only half the width of the bridge piece B. In the modification, Fig. 3, the magnet is of E-shape having a common pole P<1> and two poles P<2>, P<3> of opposite sign to the common pole, the needle N being mounted in a tube T fixed in a hole in the pole tip P<1> or in a non-magnetic bridge piece carried by this pole tip.
Patent GB-918207-A (GB)
Title: Improvements in or relating to pawl and ratchet mechanisms
Inventor: MONUMENT RONALD
IPC: F16H29/02
Filed: 1959-05-06
Abstract: 918,207. Ratchet gearing. POWLEY & SONS Ltd., R. March 28, 1960 [May 6, 1959], No.15475/59. Class 80 (3). The subject-matter, relating to a bottleconveying mechanism of a bottle-washing machine is substantially the same as that described in Specifications 918,208 and 918,209 [Group XXX], but the claims are concerned with the pawl-and-ratchet drive for the conveyer shaft 12 in which, in order to provide at intervals a prolonged dwell, the driving pawl carrier 46 is oscillated about a ratchet-wheel 48 on the shaft 12 by a crank 44 in timed relationship with the oscillations of a cam-actuated lever 50 about a pivot 51, the lever 50 having a part 52 engageable with a roller 53 on the pawl 47 to raise it at intervals and cause the pawl to make an inoperative stroke to provide the required dwell. As shown, the crank 44 is driven by an electric motor M through a gear. box 43 and the cam 54 actuating lever 50 is timed to render alternate pawl strokes inoperative. Back-running is prevented by a pawl 49.
Patent GB-198562-A (GB)
Title: Improvements in or relating to stays for casement windows and other hinged or pivoted members
IPC: E05C17/18
Filed: 1922-06-02
Abstract: 198,562. Davis, G. F., and Jones, G. June 2, 1922. Stays.-The stay-bar 3 pivoted to a plate 1 fixed to the hinged article, e.g. a casement window, passes through an eye-member 11 in which is mounted a spring-pressed catch 14 adapted to engage notches in the underside of the bar and to be disengaged by pressing upon a thumb-piece 16. A universal joint 9, 7 supports the eye-member upon a plate 6 fixed to the window-sill, this mounting preventing the staybar from jamming in the eye if the window sags.
Patent GB-544657-A (GB)
Title: Improvements in or relating to the supply of air to the cylinders of internal combustion engines
IPC: F02B9/00
Filed: 1940-10-21
Abstract: 544,657. Regulating; cylinder pipes. DAIMLER-BENZ AKT.-GES. Oct. 21, 1940, No. 15513. Convention date, Nov. 19, 1938. [Classes 7 (ii) and 7 (vi)] In a direct fuel-injection engine receiving air from a blower e and main conduit i, b, auxiliary or byepass air ducts k, l<SP>1</SP>, l<SP>2</SP> are provided and controlled so as to come into use at low speeds or outputs, so as to obtain a more even distribution of air to the various cylinders of the engine. The main and auxiliary conduits are controlled by a throttle valve f<SP>3</SP> having end discs f<SP>1</SP> formed with ports f<SP>2</SP>, which are so arranged that, when the throttle f<SP>3</SP> is fully open, as shown in Fig. 2, the auxiliary ducts k are closed, but are opened by the ports f<SP>2</SP> as the throttle is moved towards the closed position ; while when the throttle is fully closed, both the main and auxiliary ducts are shut off. The throttle valve may be replaced by a multi-way cock.
Patent GB-1222309-A (GB)
Title: Improvements in or relating to the preparation of primary amines
IPC: H05K3/20
Filed: 1969-03-25
Abstract: 1,222,309. Preparation of primary amines. GULF RESEARCH & DEVELOPMENT CO. 25 March, 1969 [15 April, 1968], No. 15528/69. Heading C2C. Primary amines are prepared by hydrogenating a reactant which includes an organic nitrocompound, and is substantially free of ketone, in the presence of a hydrogenation catalyst and ammonia. Suitable nitrocompounds are of the general formula R 1 R 2 R 3 C-NO 2  wherein R 1 , R 2  and R 3  are each H, alkyl, aryl, alicyclic or heterocyclic substituents. Preferably 0À5-3 mols. of NH 3  per mole of nitrocompound is used with a Raney nickel catalyst. In the examples a mixture of 2-, 3-, 4-, 5-, 6-, 7- and 8-nitrohexadecanes is converted to the corresponding aminohexadecanes and a mixture of C 14-18  nitroparaffins is converted to the corresponding C 14-18  aminoparaffins.
Patent GB-1063229-A (GB)
Title: Friction welding
IPC: B23K20/12
Filed: 1964-04-15
Abstract: 1,063,229. Welding by pressure. AMERICAN MACHINE & FOUNDRY CO. April 15, 1964 [April 16, 1963], No. 15559/64. Heading B3R. A method of friction welding involves rotating a central workpiece or two central workpieces between two outer workpieces in contact therewith. In one embodiment a pair of chucks (25), (25), Fig. 1 (not shown), are supported on members (22) slidable on a pair of ways (20) and the members (22) are connected by links (28), (31) to cylinders (30) and pistons (29) slidable therein in order that the chucks may be drawn together. A tubular spindle (34) rotatably mounted between the chucks (25) carries chucks (35) and weights (41) and is rotatable by a motor 39 through a belt and pulley arrangement. In operation with two pairs of workpieces in the chucks (25), (30) the spindle (34) is rotated, the motor is disengaged and the chucks (25) are drawn together by the cylinders (30). The energy in the weights (41) is dissipated in the welds. In a modification a single workpiece is arranged within the hollow spindle (34) with its ends secured in chucks (35), in this case the single workpiece is an automobile drive shaft and the two outer workpieces are portions of universal joints. The spindle in this case has no weights mounted on it and is driven by a more powerful motor having brake means associated with the spindle. In a further embodiment a short coupling member (55), Fig. 13 (not shown) to be welded between two pipe ends is secured in an annular chuck (61) which is rotated by rollers (89), (90) it rests upon and the two pipe ends (56), (57) are gripped in chucks (94) slidably mounted on a base (78). The coupling (55) is rotated, the pipe end chucks are drawn together by cylinder devices (98) and the chuck (61) may be braked or not depending on the inertia of the rotating parts. The pipe ends may have tapered surfaces so that weld upset merely fills the space between the surfaces to be welded. In a final embodiment a short length of pipe (107), Fig. 16 (not shown) with chamfered ends is supported on rollers, a weight (116) is secured thereto and the pipe is rotated. The pipe ends (105), (106) to be welded to the pipe (107) with bevels mating those on the pipe (107) are forced together and the energy stored in the weight (116) is dissipated in the welds. The ends of the pipes (105), (106) may be prepared for welding by rubbing them against serrated cutting edges (151), Fig. 20 (not shown).
Patent GB-965043-A (GB)
Title: A printing and duplicating machine
IPC: B41L19/00
Filed: 1962-04-25
Abstract: 965,043. Printing machines. P.A. GLATZ April 25, 1962 [April 28, 1961], No. 15720/62. Headings B6B and B6C. A printing and duplicating machine such as an offset printing machine is controlled by a rotary switch 9 which is turned one step for each revolution of the impression cylinder 5 and has contact discs 9a thereon which determine for each circumferential position of the switch whether transverse or lengthwise parts of the matter on the printing plate are to be omitted from the sheet then passing through the machine or whether a sheet different in width and quality from those fed from the normal stack is to be printed during a particular revolution of the compression cylinder intermediate revolutions in which normal sheets are printed. The arrangement can be employed for automatically controlling the machine for short runs, the number of sheets printed in a run corresponding to the number of steps of the switch 9 necessary for one revolution of the switch. Feeding sheets.-Above the table 7 supporting a stack of normal sheets is a table 8 carrying sheets of different width and quality. One of the contact discs of the switch 9 can, during certain steps of the switch, cause energization of a solenoid which effects movement of the table 8 into a position where lifting suckers 11 take a sheet from that table instead of from the table 7. Tripping printing-cylinder.-Adjustable cams 13, 14 on the impression cylinder 5 can be set to prevent printing of transverse i.e. axial parts of the matter on the plate, the cams actuating switches 15, 25 controlling solenoids 16, 17 which when energized cause respectively tripping and restoring of the offset printing cylinder 3 provided that the disc 9a controlling such tripping is in the appropriate position. The machine is stopped by the last step of the switch 9. Inking apparatus; tripping.-Two inking rollers 20, 21 are provided for the plate cylinder 2 and these are moved out of contact with the parts of the plate which are not printed when the cylinder 3 is tripped, this being effected by double-acting solenoids 19 controlled by switches 23, 27 actuated by the cam 13 for this purpose. The cam 14 actuates switches 26, 28 which energize the solenoids 19 to restore the rollers 20, 21 to inking position. If a lengthwise part of the plate is not be printed on some of the sheets, the inking roller 21 is operative since it has a reduced part corresponding to the part of the plate which is to be omitted. The sheets concerned are the first to be passed through the machine and the roller 20 is rendered inoperative by its solenoid 19, so that only that part of the plate of which a print is required is inked. Subsequently the roller 21 is lifted and the roller 20 made operative so that no lengthwise parts of the matter are omitted. A disc 9a of the switch 9 controls the operation of the rollers 20, 21 through the solenoids 19.
Patent GB-1495674-A (GB)
Title: Method for treating leather
IPC: D06P5/08
Filed: 1975-04-17
Abstract: 1495674 Coated leather SUMITOMO CHEMICAL CO Ltd 17 April 1975 [17 April 1974] 15845/75 Heading B2E Leather is treated with a polymer which comprises a copolymer 2) obtained by polymerysing 5 to 2000 parts by weight of at least one acrylic ester or methacrylic ester which contains, as the alcohol moiety, a hydrocarbon or halohydrocarbon group having 1 to 20 carbon atoms and 500 parts by weight or less of at least one functionalising ethylenically unsaturated compound of the formula: wherein R<SP>I</SP> and R<SP>II</SP> are independently a hydrogen or halogen atom, the hydrocarbon or halohydrocarbon group of 1 to 8 carbon atoms, or Y, Y is a group having 1 to 20 carbon atoms and containing carboxyl, acid halide, hydroxyl, ether or oxygen-containing heterocyclic group, R<SP>III</SP> is an oxygen atom or N-R<SP>IV</SP> wherein R<SP>IV</SP> is a hydrogen atom or a hydrocarbon or halohydrocarbon group of 1 to 8 carbon atoms, in the presenceof 100 parts by weight of a polymer (1) comprising, as essential components, at least one monoethylenically unsaturated ester compound having 4 to 22 carbonatoms and at least one monoethylenically unsaturated hydrocarbon compound having 2 to 20 carbon atoms or a halogen-substituted derivative thereof. Numerous suitable examples of the various polymer components are specified and the coating may be applied by brushing, spraying, dipping or knife coating of a solution which may contain 1 to 50% by weight of the polymer and may have a viscosity of 1 to 100,000 centipoises. These may be applied in amount of 1 to 50 grams per sq metre and the drying up to 200‹C. The coatings prevent colour bleeding.
Patent GB-1049800-A (GB)
Title: Hot-water boiler
IPC: F24H1/48
Filed: 1964-04-16
Abstract: 1,049,800. Hot water boilers. ACCUM A.G. April 16, 1964 [April 17, 1963], No. 15882/64. Heading F4A. A hot water boiler, fired by liquid or gaseous fuels, comprises two roughly concentric intercommunicating water jackets 2, 3 arranged so that the combustion gases from a combustion chamber 1 pass through an aperture 5 in the bottom of the inner water jacket 2 and then rise in the flue passage 4 between the water jackets being deflected by a substantially horizontal horseshoe shaped baffle 11, and passing out through an exhaust gas pipe 10. A tank 19 is arranged above the boiler and is heated by hot water rising up a vertical pipe 21 from the inner water jacket 2, passing between the walls of a water jacket 20 surrounding tank 19, and returning through pipe 22 to the outer water jacket 3 which is in communication with the inner water jacket 2 at the forward end 6. Pipe 16 delivers hot water from jacket 3 to a heating system, the used water returning to the outer jacket through a return flow pipe 17. A pipe 23 supplies fresh water to tank 19 and hot water for domestic use is taken from tank 19 through pipe 24. Pipe 27 leads to an expansion tank (not shown). Thermometer connections 26, 28 are provided. To prevent the combustion gases becoming too cold when the boiler is run at a small load, closable throughflow apertures (not shown) may be provided in the rear end 11b of the baffle 11 to short circuit the path of said gases. Access for cleaning the flue 4 is had through a door 18 and the tank 19 has a covered access opening 25.
Patent GB-989421-A (GB)
Title: Solid fuel
Inventor: NICOLSON STANLEY RUSSELL
IPC: C10L11/04
Filed: 1960-05-05
Abstract: A solid fuel comprises in combination a readily ignitable firelighter, for example a block of urea formaldehyde impregnated with paraffin or white spirit within a waxed bag, and coal and/or smokeless fuel located within a common combustible container, for example an outer bag of paper and an inner bag of waxed paper, the firelighter being located within the container in contact with one surface of the container and adjacent to one end of the container, and the fuel being so disposed as to be in contact with the firelighter without covering the firelighter.  The container may present a free edge or edge portion to facilitate ignition, the firelighter being adjacent to said edge.  The fuel may be of two different combustibilities, the more combustible being adjacent to the firelighter.
Patent GB-761282-A (GB)
Title: Shaft kiln
IPC: F27B1/00
Filed: 1954-05-28
Abstract: 761,282. Shaft furnaces. DE ROLL SOC. ANON., L. May 28, 1954 [May 28, 1953], No. 15931/54. Class 51 (2). In a shaft furnace for burning cement, lime or dolomite, or for sintering or reducing ores, even and easily controllable heating of the charge material fed by hoppers 3 and 4 is obtained by disposing above the shaft 1 a gas or oil-fired combustion chamber 5, from which hot gases pass into the top of the shaft through ports 9 in the narrow arch forming the bottom wall of the combustion chamber and through ports 10 in a peripheral duct 11 extending in and round the oral wall of the shaft and connected to the combustion chamber by ports 12. Additional ports 9a provide preheating gases immediately below the hoppers 3 and 4. Cooling air or gas is supplied at the foot of the shaft by a blower 19 and the air or gas taken off through peripheral ports 14 in the shaft may be used as combustion air in the chamber 5 or as reducing gas in the hottest zone of the furnace, respectively. A modification, Figs. 5-8 (not shown), has the combustion chamber formed as a peripheral ring in and round the top of the oval-shaped shaft, with hot gas ports extending inwardly and downwardly of the shaft wall and downwardly through a bridge on the major axis of the furnace and between the charging hoppers. Waste gases leave the shaft, either through the feed hoppers or through a chimney (not shown) between the hoppers and the surrounding wall.
Patent GB-1371300-A (GB)
Title: Peak flow indicator for fluids
IPC: G01F1/00
Filed: 1973-04-03
Abstract: 1371300 Measuring fluid-flow MEEDA SCIENTIFIC INSTRUMENTATION Ltd 3 April 1973 [17 April 1972] 15946/73 Heading G1R In a peak fluid-flow or velocity indicator comprising a body 4 having an entrance adaptor 3 at one end and a cylinder 4, in which a spring-loaded piston 5 and an indicator ring 9 are slideable, at the other, the arrangement is such that on admission of fluid to the adaptor 3 part of the fluid passes through passage 18 and a controlling aperture 20 in a handle 17, at an acute angle to cylinder 4, and the balance of fluid moves the piston 5 and the indicator ring 9. The outside of cylinder 4 is calibrated so that volumes per minute can be read. In an alternative embodiment, Fig. 2 (not shown), passages, in lieu of passage 18, are arranged in the body (1) wall and the exits of such passages are controlled by a ring slideably mounted on outside of the body. Rings of different widths may be used. The ring 9 or disc may be returned manually by a reset piston 14 which piston may be returned to the inoperative position by a spring, Fig. 3 (not shown). The ring 9 may also be returned to its initial position by a magnet. The cylinder 4 may be transparent, translucent or opaque and a calibrated rod may extend through a cover 10.
Patent GB-363956-A (GB)
Title: Improvements in or relating to filters for suppressing high frequency disturbances in electric conductors
IPC: H03H7/01
Filed: 1931-06-01
Abstract: 363,956. Excluding high frequency oscillations from supply systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. June 1, 1931, No. 15957. Convention date, June 7, 1930. [Class 38 (iv).] Relates to means for excluding from supply mains high frequency disturbances set up by consuming devices such as those having commutators or interrupters and liable to interfere with wireless apparatus connected to the mains, and consists in a filter circuit for insertion between the mains 20, 21 and the terminals 22, 23 of the disturbing device, the filter circuit comprising a pair of chokes 1, 2 bridged at both ends by a series connected pair of condensers 3 .. 6, the points of interconnection of the condensers being brought out to separate terminals 9, 10 for making appropriate earth connections. In order that one earth connection may suffice, the terminals 9, 10 may be interconnected by a switch. Fig. 2 shows a filter modified for use on a threewire system. This filter may be simplified by connecting a condenser to each line and to a common terminal.